Gasoline-dispensing device



June 10, 1930. .1. J. TOKHEIM GASOLINE DISPENSING DEVICE Filed Aug. 10,1927 3 Sheets-Sheet '1 June 1%, 193W J TOKHEIM 1,763,544

I GASOLINE DISPENSING DEVICE Filed Aug. 10, 1927 3 Sheets-Sheet 2IHHHHH' HHHHHH 1 (j ohn/ Jflliheim,

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June 10, 19300 J. J. TOKHEIM GASOLINE DISPENSING DEVICE Filed Aug. 10,1927 3 Sheets-Sheet 3 INVENToR M/ITNESSES Patented June 10, 1930 UNITEDSTATES JOHN J". TOKHEIM, F CEDAR RAPIDS, IOWA v GASOLINE-DISPENSINGDEVICE Application filed August 10, 1927. Serial No. 212,042.

This invention relates to a gasoline dispensing device and moreparticularly to that type known as visible pumps.

A primary object of the invention is to provide a device involving novelfeatures of construction which render the pump of maximum efficiency,easy to operate, and also tamper-proof when left unattended.

To that end the invention contemplates a reservoir constructionincluding a transparent container having the gallon marks and figuressand-blasted on the inside of the cylinder, together with novel meansfor sup porting and holding the cylinder in position,

as well as providing a display cover hinged to the reservoirconstruction so that access may be readily had to the reservoir whendesired. In that connection, it is also proposed to include in thereservoir construction, a novel shield or hood for the dispensing nozzlethereby to prevent the same from i being fouled with rain or snow andotherwise generally protecting the same.

A further object of the invention is to provide a novel drain-back valvewhich communicates directly with the return or overflow line of thesystem.- That is to say, it is proposed to provide a novel valvearrangement which permits of simultaneously closing the discharge portof the reservoir, and

opening a by-pass return valve which communicates with the overflow lineso that when the pump is left for the night or other unattended period,it will be impossible for anyone who may use a duplicate or substitutelever to operate the pump, to cause gasohne to go into the customersfill hose or discharge line, since-the same is automatically closed andat the same time the bottom part of the reservoir is put incommunication with the overflow or return pipe. v

A still further object of the invention is to provide a novel handoperated pump whlch possesses features of construction that enable it tooperate efliciently and reliably under all conditions of use, and tolast considerably longer than the average pump.

WVith the above and other objects in view which will more readily appearas the nature of the invention is better understood, the same consistsin the novel construction, combination and arrangement of partshereinafter more fully described, illustrated and'claimed.

A preferred and practical embodiment of i the invention is shown in theaccompanying drawings in which Figure 1 is a perspective viewillustrating the complete pump.

Figure 2 is a perspective view with the easing or body sheets removedand the display cover raised.

Figure 2 is a horizontal sectional-view showing in plan the Y formationof the base casting which supports the pump instrumentalities.

Figure 3 is an enlarged vertical sectional view of the dispensingreservoir.

. Figure 4: is a horizontal sectional view of the bottom of thedispensing reservoir.

Figure 5 is an enlarged detail vertical sectional view taken on the line5-5 of Figure 4.

Figure 5 is a detail view illustrating the means for supporting thelocking means for the return valve.

Figure'6 is a vertical sectional view of the .75 pump.

Figures 7 and 8 are respectively a detail elevation and cross section ofthe glass cylinder showing the gallon indications cut on the inside. i

Similar reference characters designate corresponding parts throughoutthe several figures of the drawings.

Referring to the drawings it will be observed from Figure 1 that thepresent construction includes a casing designated generally as A mountedupon a base casting or ring B, the said base and standard beingsurmounted by a reservoir 0 which in turn is provided with a cap ordisplay cover designated generally as D. The reservoir C is suppliedwith gasoline from a storage reservoir by a suitable pump designatedgenerally as E which may be operated by the handle F or equivalentmeans. Thegasoline supplied to the reservoir C by the pump E may bedispensed to the consumer through the hose connection H which may befitted with the control nozzle N in the usual manner.

The base casting B preferably includes a casing rest, and as will beobserved from Fig.

2" the said ring or flange 1 is provided with a Y-shaped spider whichprovides in effect a horizontal continuation of the vertical legs 2.

The space between the ring 3 and the flange 1 may be fitted with a coverplate A which permits of convenient access to pipe connections in thebase of the pump by removing the relatively small section A only. Thebase B also supports the pump E and the feed and overflow pipes for thereservoir or measure. The feed pipe from the pump is designatedgenerally as 4 and the overflow or return pipe is designated 5 and leadsback to the storage tank in the usual way.

Qne of the novel features of the invention resides in the manner ofsupporting the reservoir or measure 0. That is to say, the'saidreservoir is supported on the feed pipe 4, and when the overflow pipe 5is connected thereto relative turning movement of the entire reservoiron the feed pipe is prevented, while at the same time the overflow pipecontributes to the stability of the support for the reservoir, as doesalso the casing A which fits around the depending flange 6 of the plate7 which constitutes the base or bottom of the reservoir.

The peripheral edge portion of the said plate 7 is provided with anextending overhanging flange 8 provided at a suitable point with thehook 9 on which the nozzle end may be supported thereby to be protectedand housed from the elements as heretofore 1nd1- oated. Also, the saidplate is provided at lts central part with a boss 10 which is interiorlythreaded at both ends whereby its lower end may receive the feed pipe 4,while its upper end may receive the feed pipe extension 4. The upperportion of the feed pipe exten sion is provided with openings 11 whichpermit gasoline forced through the-supply line, to make its way into thereservoir as will pres ently appear. Furthermore, the upper end of saidpipe is exteriorly threaded thereby to receive a combined cap andclamping nut 12 which is adapted to clamp a dust excluding cover plate13 onto the upper edge of the glass cylinder 14 which constitutes theside wall of the reservoir. Suitable gaskets 15 are provided at theupper and lower edges of the cylinder so that Where the cylinder engagesthe cover and the bottom plate, a fluid type joint will be provided.This arrangement of centrally binding the reservoir is of. much prac-'tical importance since it permits of an even distribution of pressure onthe glass cylinder 14 which cannot be. accomplished where a plurality ofclamping rods or struts are used. In other words, by the glass cylinderbeing supported on the bottom" plate 7 and subjected to an even clampingpressure due to The dust plate 13 is provided with a plu-' rality ofinspection or clean out ports 16 which may have the cover disks 17 shownin detail in Figure 3. Also the cover is provided with a centraldepending flange 18whicl1 is spaced from the feed pipe extension 4- soas to permit the free discharge of gasoline through the openings 11, andsaid flange carries therewith the downflow pipe 19 whose lower end isspaced from the bottom plate as indicated at 20 to permit the freedischarge of gasoline into the reservoir. This means for feeding thegasoline into the reservoir avoids foaming and permits the gasoline torise until it reaches the level of the mouth 21 of the overflowextension pipe 5 whose lower end is fitted into a threaded boss 22 inthe plate 7 and communicates directly with the return line 5 which isfitted in the bottom of the boss 22. A

Another distinctive feature of the invention resides in connection withthe boss 22 and the hose outlet or discharge port 23 to which thecustomers hose H is connected (see Figs. 4 and 5). That is to say, theboss 22 of the overflow line is adapted to communicate witha passage 24which is normally closed by a valve 25, the said valve carrying anextension 26 which is interlocked-with a lever 27 fulcrumed on a post 28and carrying a cut-off valve 29 which when closed positively seals thedischarge opening' 23 previously referred to. This valve 29, however, isnormally maintained elevated so as to permit the gasoline within thecontainer to normally pass out thehose outlet 23. Nevertheless, when thepump is to be left unattended for any period of time, the valve 25 isopened, thus placing the container in direct communication with thereturn line 5 through passage 24 and permitting the valve 29 to beseated thereby to positively close the hose outlet 23. Therefore, ifgasoline should be pumped into the container by an unauthorized personit could not be discharged through the opening 23 because the same wouldbe closed by the valve 29, and of course it would immediately flow backto the source of supply through the 30*. This lever is pivotallysupported as at 31 in a bracket 32 carried by the return line 5 and aswill be observed from Fig. 5 the normal position of the stem 25 and thelever 30 is such that the spring 25 is expanded and the valve 25 seated.

When the pump is to be left unattended the lever 30 is rocked on itspivot 31 thereby to bring the eye 33 of the end 30 into alinement withthe eye 34 of a flan e attached to the casing A at the edge of the slottherein "through which the lever 30 projects so that a padlock P or thelike. may be inserted in the registering'eyes and thus maintain thelever in a downward position. Also, the upper end of the flange may beprovided with an eye or opening so that the lever might be locked in itsupward position. The effect of locking the lever in eye 34 is tocompress the spring 25 and elevate the stem 25 to unseat the valve 25,thereby causing the spring to compress the gasket 25 and insure a fluidtight joint between the stem and the gasket, and also elevating the armor extension 26 carried by the valve. Since the arm 27 is interlockedwith the extension 26, when the latter is elevated by the unseating ofthe valve 25, the'valve 29 carried by the lever 27 will be letdown toclose the discharge port or outlet which communicates with the drain orcustomers hose H. Therefore, when the valve 25 is locked in its openposition it will be apparent that any asoline pumped into the containercannot ow past the valve 29"and will make its way back to the return oroverflow pipe 5.

The lever 30 may serve as a convenient support for the nozzle N when thepump is not in use. That is to say, the loop or eye on the nozzle whichis ordinarily placed on the hook 9 may be placed over the lever 30thereby to pull the lever downwardly and maintain valve 25 open andvalve 29 closed. Then, when the padlock P, or the like is placed througheyes 33 and 34, the said lock will not only hold the lever 30 in a tamper-proofposition but will also prevent' removal of the nozzle N byunauthorized persons. The opening in the casing A through "which thelever 30 projects may be formed sufficiently large to permit the loop ofthe nozzle N to be engaged over said lever.

The pump E forelevating the gasoline from the source of supply to thecontainer or reservoir C includes in its organization a chambered valvebase designated as 35 (Fig. 6) which communicates with a supply pipe 36and has the valves 37 therein adapted to respectively communicate withseparate cylinders 38. These cylinders are held to the base 35 by meansof the elongated bolts 39 which clamp the cylinders between thechambered cover 40 and the valve base as clearly shown in Fig. 6. Theupper ends of the cylinders 38 communicate with the cover 40 which inturnis provided with a boss 41 for of the one piece self guiding or selfalining.

pistons 45. These pistons have two or more packing grooves, dependingupon the duty of the pump, and each groove receives at the bottomthereof a split flat metallic expanding ring 46 and a flexible cushionpacking 47 which takes the place of the commonly used cup-leathers butwhich are far more durable and satisfactory and last indefinitely. Theheads of the pistons 45 are provided with the valves 48 which close onthe up stroke of the pistons but open on the down stroke thereof to getbehind the gasoline brought into the cylinder through the valve 37 onthe previous up stroke. In assembling the construction, the valve 48 isinserted in the piston first and the valve seat 48 is screwed in placeafterwards, thus improving and simplifying the piston construction. It"will also be observed that the body or side wall of the piston extendsabove the wrist pin 44, thereby assisting in the proper guiding of thepiston in the cylinder, and this feature, together with the spacedpacking rings 47, prevents scarring and wearing of the cylinder walls.

With the pump construction described it will be apparent that byreciprocating the handle F, the pistons 45 will be alternately elevatedand lowered to lift the gasoline from the source of supply into thereservoir C.

Another feature of the invention resides in the novel cap or displaycover construction D for the pump. As will be observed from Figs. 1, 2and 3 the plate 13 is provided with an upstanding flange 13 and adownturned canopy or drip flange 13". The flange 13 cooperates with therounded or dome-shaped central part 50 of the cap which is provided witha flange 51 that cooperates with the up standing flange 13 to completelyhouse and protect the dust plate 13 from the weather. Also the entirecap D is hinged as at 52 to the plate 13 so that the same may be rockedon the hinge when desired to expose the dust plate 13 and its associatedparts. In addition to performing the functions of a cap the dome portion50 also serves as a means for supporting the electrical fixtures for il-Fig. 3 the top of the cover is provided with a shade or globe holder 53for securing the transparent or translucent globe 54 in place. Thecentral portion of the cover also supports an electrical fixture 55 forreceiving a lamp to illuminate the transparent globe 54. The sides ofthe part 50 are provided with the radially disposed electrical fixtures56- for receiving lamps for luminating the pump. As will be seen fromilluminating the reservoir C on all sides in accordance with the wellknown practice. The electrical fixtures and 56 are electricallyconnected with the main line or circuit through the wires 57 which arebrought up through the casing A in a standard form of cable 08 asclearly shown in Figs. 2 and 3. It will of course be understood thatsufficient slack is provided in the wires 57 to permit of the cover Dbeing rocked on the hinge 52. Also to assist in insulating theelectrical fixtures from the mainpart of the apparatus an insulatingshield 59 may beemployed.

Another feature of much practical importance in the present inventionresides in the marking of the gallon indications on the inside of thetransparent container 14. As will be observed from Figs. 7 and 8 thefigures as well as lines indicating the gallons are sandblasted on theinside of the cylinder. By sand-blasting the figures and other indiciaon the inside of the glass as indicated at 60 the exact liquid level istruly visible from any angle regardless of the thickness of r the glassand the position from which the reservoir is'viewed. Due to the parallaxin vision with markers on the outside of the glass some jurisdictionsrequire that the markers be inside of the measure, and it has been thepractice heretofore to use metal markers on rods inside of the measure.However, as these markers cannot be made absolutely stationary, there istoo much variation in measurement and no dependable accuracy. Bysandblasting the figures and level indicating marks on the inside of theglass the accuracy of the measure is insured.

WVithout further description it is thought that the features andadvantages of the invention will be readily apparent to those skilled inthe art, and it will of course be understood that changes in the form,proportion and minor details of construction may be resorted to, withoutdeparting from the spirit of the invention and scope of the appendedclaims.

I clain 1. A gasoline dispensing device including a reservoir comprisinga base, a container mounted on the base, means for supplying liquid tothe reservoir, an overflow pipe carried by the base and projectingupwardly into the reservoir, a return pipe connected to the base andcommunicating with the overflow pipe, said base having a dispensingoutlet and a drain passage which communicates with the reservoir andwith the return pipe, a valve for the dispensing outlet, a springpressed valve for normally closing the drain passage, and means forconnecting the first named valve with the spring pressed valve wherebywhen one valve is unseated the other will be seated.

2. A gasoline dispensing device including a reservoir comprising a base,a transparent container mounted on the base, means for supplying liquidto the reservoir, an overflow pipe carried by the base and projectingupwardly into the reservoir, a return pipe line connected to the baseand communicating with the overflow pipe, and said base having adispensing port and a drain passage therein and said drain passageadapted to communicate with the reservoir and with the return line, avalve for closing the drain passage, a spring for normally maintainingsaid valve closed, a lever supported intermediate its ends on the base,a valve adapted to close the dispensing outlet carried by one end of thelever, a connection between the valve for the drain outlet and saidlever whereby when said latter valve is closed the valve for thedispensing outlet is open, and means adapted to operate in opposition tothe spring for maintaining the valve of the drain passage open wherebythe valve for the dispensing outlet will be closed.

3. A gasoline dispensing device including a reservoir comprising a basehaving a dispensing outlet and a drain passage, a spring actuated drainvalve normally closing the drain passage, a support carried by the base,a lever intermediately pivoted to said support, a valve carried by saidlever for controlling the flow through the dispensing outlet, aconnection between said lever and said drain valve, a lever forcontrolling the position of the drain valve, and means whereby saidsecond mentioned lever is adapted to be locked in a position to maintainthe drain valve open and the other valve closed.

4. A gasoline dispensing device comprising, in combination, a reservoirhaving liquid supply means and overflow and return means, a dispensinghose, a pum for forcing liquid into the reservoir throng the supplymeans, a pair of valved outlets in the reservoir respectivelycommunicating with the dispensing hose and the return line, and meansfor operatively connecting and controlling said valved outlets wherebywhen the outlet connecting with the dispensing hose is closed liquidsupplied by the pump to the reservoir will pass therefrom to the returnline.

5. 'A gasoline dispensing device comprising, in combination, a reservoirincluding a. base having a customers service discharge opening for thecontents of the container, means for supplying gasoline to thecontainer, overflow means for establishing the level of gasoline in thecontainer, and said case having a passageway communicating with theoverflow means and provided with a valve opening, a valve for saidopening, a valve for said customers service discharge opening, a supporton the base between said valve opening and thecustomers dischargeopening, a lever carried by said support and operatively connected witha valve for said customers discharge opening and the valve for the drainopening, and means for operating the valve at the drain opening tocontrol the latter and also the valve at the customers dischargeopening.

6. A gasoline dispensing device including a reservoir comprising a base,a transparent cylinder mounted on the base, means for supplying liquidto the reservoir, means for emptying the same, a dust plate covering thereservoir, means for clamping the dust plate to p a part of the meansfor supplying liquid to the reservoir, and a display cover hinged to oneside of the dust plate. 1

7. A gasoline dispensing device including a reservoir comprising a base,a transparent cylinder mounted on the base, a central gasoline feedpipe, a cover plate having a circumferential seat for engaging the upperedge of the transparent container and having a central opening forreceiving the said gasoline feed pipe, a clamping member for engagingsaid feed pipe to force the dust plate into, firm contact with the upperedge of the cylinder, an upstanding flange formed on the upper side ofthe dust plate, and a display cover hinged to the dust plate and havinga portion fitting over said upstanding flange of the dust plate.

- 8. In a gasoline dispensing device, a reservoir including a base, atransparent container mounted on the base, an overflow pipe connectedwith the base, a feed pipe-connected with the base, a dust coverengaging the upper edge of the transparent container, and a clamping nutfor engaging the feed pipe to rigidly clamp the dust plate against thecontainer.

9. A gasoline dispensing device comprising a container, gasoline supply,dispensing and return means connected -with said container, a valvecontrolling said dispensing means, a valve controlling said returnmeans, and a connection between said valves whereby closing of one opensthe other.

10. A gasoline dispensing device compris ing a container, gasolinesupply, dispensing 7 and return means connected with said container, avalve controlling said dispensing means, a valve controlling said returnmeans, a connection between said valves whereby closing of one opens theother, and means maintaining said second mentioned valve normallyclosed.

11. A gasoline dispensing device comprising a container, gasolinesupply, dispensing and return means connected with said container, avalve controlling said dispensing means, a valve within said containercontrolling said return means, a connection between said valves wherebyclosing of one opens the other, a stemon said second mentioned valveprojecting exteriorly of said container, compressible packingsurrounding said stem, an abutment on said stem exteriorly of thecontainer, and a coil spring between said packing and said abutmentreactin from the packing to maintain said secon mentioned valve normallyclosed.

12. A gasoline dispensing device comprising a container, gasolinesupply, dispensing and return means connected with said container,valves for controlling said dispensing and return means, respectively,and an intermediately pivoted lever connected at its ends with saidvalves, respectively, whereby closing of one of said valves opens theother.

.13. A gasoline dispensing device comprising a container, gasolinesupply, dispensing and return means connected with said container,valves for controlling said dispensing and return means, respectively, aconnection between said valves whereby closing of one opens the other,and means for operating said valves.

14. A gasoline dispensing device comprising a container, gasolinesupply, dispensing and return means connected with said container,valves for controlling said dispensing and return means, respectively, aconnection.

between said valves whereby closing of one opens the other, and a leverfor operating said valves. v

In testimony whereof I hereunto afiix my signature.

JOHN J. TOKHEIM.

